Terahertz measuring device and terahertz measuring method for measuring test object
A technology of measuring devices and measuring methods, which is applied to measuring devices, optical devices, instruments, etc., and can solve problems such as mechanical adjustment costs
Active Publication Date: 2021-08-03
伊诺埃克斯挤压技术创新设备公司
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Problems solved by technology
However, such mechanical adjustments are usually costly
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[0044] Used to measure the test object 2, where the terahertz measuring device 1 of the plastic tube 2 has a terahertz emission and receiving unit 3 and a plurality of terahertz receiving units 4 serving as the main unit. (Main unit -) Tahertz transmitting and receiving unit 3 transmit, for example, terahertz radiation 5 in a frequency range of 0.01THz to 10THz, especially 0.1 twz to 3THz; for this purpose, the terahertz transmit and receive unit 3 are fully electronically constituted It is also, for example, a terahertz radiation such as a pulsed radiation is generated, for example, or, for example,, for example, or, for example,, for example, in a time domain, a terahertz radiation is generated, for example, radiation.
[0045] The terahertz transmitting and receiving unit 3 enables measurements of running time Δt to the emission time t0 of the transmitted terahertz radiation 5, the terahertz radiation is returned from the test object 2 to the terahertz emission and receiving un...
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Abstract
The invention relates to a terahertz measuring device for measuring a test object by means of a runtime measurement while determining at least one first distance, having: for emitting terahertz radiation and detecting first terahertz radiation reflected by the test object The terahertz transmitting and receiving unit, and the evaluation unit for determining the first transit time of the terahertz radiation and at least one first distance of the test object, provide that at least one passive terahertz receiving device is provided, the optical axes of which are opposite to Displaced or obliquely arranged with respect to the optical axis of the terahertz transmitter and receiver unit and detects the second terahertz radiation emitted by the terahertz transmitter and receiver unit and reflected on the test object; provided with a data connection for synchronization by means of signal to synchronize the terahertz transmitting and receiving unit and the passive terahertz receiving unit, the evaluation unit or the terahertz receiving unit determines a second runtime and a second distance from the reflected second terahertz radiation and the synchronization signal.
Description
Technical field [0001] The present invention relates to a terahertz measuring apparatus and a terahertz measurement method for measuring test objects with runtime measurement. Background technique [0002] In such a measuring device and a measurement method, the terahertz radiation is radiated from the terahertz emission and the receiving unit along the optical axis onto the test object and the radiation reflected by the test object back reflects by the terahertz emission and receiving unit detection, Among them, the run time of the radiation can be determined. Here,, for example, the radiation of the pulse can be transmitted and the pulse is measured, or the frequency modulation can be transmitted in the case where the measurement is measured in the frequency range, wherein such a measurement method can correspond to technical correspondence or described as relative to Fourier transform of each other. Therefore, it is possible to measure the test objects that the terahertz radia...
Claims
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IPC IPC(8): G01B11/06G01N21/3586
CPCG01B11/06G01N21/3581G01N21/952
Inventor R·克洛泽
Owner 伊诺埃克斯挤压技术创新设备公司